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61345274 = 253578729
BaseRepresentation
bin1110101000000…
…0110111111010
311021102122220012
43222000313322
5111201022044
610030501522
71343266124
oct352006772
9137378805
1061345274
113169a681
12186648a2
13c92b3a3
14820c214
1555bb59e
hex3a80dfa

61345274 has 8 divisors (see below), whose sum is σ = 93754260. Its totient is φ = 30093856.

The previous prime is 61345261. The next prime is 61345283. The reversal of 61345274 is 47254316.

It can be written as a sum of positive squares in 2 ways, for example, as 53919649 + 7425625 = 7343^2 + 2725^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 61345274.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 289259 + ... + 289470.

Almost surely, 261345274 is an apocalyptic number.

61345274 is a deficient number, since it is larger than the sum of its proper divisors (32408986).

61345274 is a wasteful number, since it uses less digits than its factorization.

61345274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 578784.

The product of its digits is 20160, while the sum is 32.

The square root of 61345274 is about 7832.3223886661. The cubic root of 61345274 is about 394.3910373032.

The spelling of 61345274 in words is "sixty-one million, three hundred forty-five thousand, two hundred seventy-four".

Divisors: 1 2 53 106 578729 1157458 30672637 61345274